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Sakaguchi K, Kishi M, Tamiaki H. Self-aggregation of Synthetic 20- O-Substituted Bacteriochlorophyll- d Analogs. CHEM LETT 2021. [DOI: 10.1246/cl.210216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kana Sakaguchi
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Masashi Kishi
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Hitoshi Tamiaki
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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Convenient peripheral aroyloxylation reactions of porphyrins and chlorophyll-a-based chlorins with benzoyl peroxide. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.12.093] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Tamiaki H, Ariki N, Sugiyama H, Taira Y, Kinoshita Y, Miyatake T. Synthesis of 3,20-disubstituted chlorophyll-a derivatives and reactivity of the substituents. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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KUREISHI YASUHIKO, TAMIAKI HITOSHI. Synthesis and Self-aggregation of Zinc 20-Halogenochlorins as a Model for Bacteriochlorophylls c/d. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1002/(sici)1099-1409(199803/04)2:2%3c159::aid-jpp62%3e3.0.co%3b2-q] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Zinc 20-halogenochlorins 2(20- F ), 3(20- Cl ) and 4(20- Br ) were synthesized by halogenation of a chlorophyll a derivative at the 20-position as a model for bacteriochlorophyll ( BChl )c, which possesses a methyl group at the 20-position and 20-unsubstituted BChl d. Visible spectra in a polar tetrahydrofuran ( THF ) solution showed that 2-4 were monomeric and the planarity of the chlorin ring, was distorted with increasing bulkiness of the 20-substituent. Visible, circular dichroism and IR spectra revealed that 2-4 self-aggregated to form oligomers similarly with 20-unsubstituted 1 and BChls c/d in the heterogeneous thin film as well as in homogeneous non-polar solvents (1% (v/v) THF-hexane). Therefore, the in vitro self-aggregates of 2-4 are good structural models for in vivo BChls c/d self-aggregates, the main antenna components of photosynthetic green bacteria. Fluorescence spectra showed that monomeric 3 and 4 were less emissive than 1 and 2 due to the heavy atom effect which could not be observed in the oligomeric species, indicating that the in vitro aggregates should be promising as functional (light-harvesting) models.
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Affiliation(s)
- YASUHIKO KUREISHI
- Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan
| | - HITOSHI TAMIAKI
- Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan
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KUREISHI YASUHIKO, TAMIAKI HITOSHI. Synthesis and Self-aggregation of Zinc 20-Halogenochlorins as a Model for Bacteriochlorophylls c/d. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1002/(sici)1099-1409(199803/04)2:2<159::aid-jpp62>3.0.co;2-q] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Zinc 20-halogenochlorins 2(20- F ), 3(20- Cl ) and 4(20- Br ) were synthesized by halogenation of a chlorophyll a derivative at the 20-position as a model for bacteriochlorophyll ( BChl )c, which possesses a methyl group at the 20-position and 20-unsubstituted BChl d. Visible spectra in a polar tetrahydrofuran ( THF ) solution showed that 2-4 were monomeric and the planarity of the chlorin ring, was distorted with increasing bulkiness of the 20-substituent. Visible, circular dichroism and IR spectra revealed that 2-4 self-aggregated to form oligomers similarly with 20-unsubstituted 1 and BChls c/d in the heterogeneous thin film as well as in homogeneous non-polar solvents (1% (v/v) THF-hexane). Therefore, the in vitro self-aggregates of 2-4 are good structural models for in vivo BChls c/d self-aggregates, the main antenna components of photosynthetic green bacteria. Fluorescence spectra showed that monomeric 3 and 4 were less emissive than 1 and 2 due to the heavy atom effect which could not be observed in the oligomeric species, indicating that the in vitro aggregates should be promising as functional (light-harvesting) models.
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Affiliation(s)
- YASUHIKO KUREISHI
- Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan
| | - HITOSHI TAMIAKI
- Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, 525-8577, Japan
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Curty C, Engel N, Iturraspe J, Gossauer A. MECHANISM OF PHOTOOXYGENATION OF THE CD (II) COMPLEX OF PYROPHEOPHORBIDE A METHYL ESTER. Photochem Photobiol 2011. [DOI: 10.1111/j.1751-1097.1995.tb09869.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Topalov G, Kishi Y. Chlorophyll Catabolism Leading to the Skeleton of Dinoflagellate and Krill Luciferins: Hypothesis and Model Studies. Angew Chem Int Ed Engl 2001; 40:3892-3894. [DOI: 10.1002/1521-3773(20011015)40:20<3892::aid-anie3892>3.0.co;2-h] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2001] [Indexed: 11/08/2022]
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Topalov G, Kishi Y. Chlorophyll Catabolism Leading to the Skeleton of Dinoflagellate and Krill Luciferins: Hypothesis and Model Studies. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20011015)113:20<4010::aid-ange4010>3.0.co;2-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Peroxidase-catalysed chlorophyll destruction accompanied by the formation of electronically excited states: chlorophyll emission not due to energy transfer from excited substrate metabolites. J Photochem Photobiol A Chem 1996. [DOI: 10.1016/s1010-6030(96)04424-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chlorophyll catabolism — structures, mechanisms, conversions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 1996. [DOI: 10.1016/1011-1344(95)07257-8] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Micura R, Grubmayr K. Ein Seryliminoester des Phycocyanobilins als neues Modell für die Chromophor-Protein-Wechselwirkung des Phytochroms. Angew Chem Int Ed Engl 1995. [DOI: 10.1002/ange.19951071621] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Isaac M, Senge MO, Smith KM. Synthesis and characterization of models for the bilin catabolites of chlorophylls using metallo-β-oxochlorins and -benzo[at]chlorins: comparison of macrocycle cleavage versus meso-oxochlorin formation. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/p19950000705] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Micura R, Grubmayr K. Long-wavelength absorbing derivatives of phycocyanobilin: New structural aspects of phytochrome. Bioorg Med Chem Lett 1994. [DOI: 10.1016/s0960-894x(01)80275-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Iturraspe J, Gossauer A. Dependence of the Regioselectivity of Photo-oxidative Ring Opening of the Chlorophyll Macrocycle on the Complexed Metal Ion. Helv Chim Acta 1991. [DOI: 10.1002/hlca.19910740812] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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